// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_
#define CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_

#include <memory>
#include <string>
#include <vector>

#include "base/compiler_specific.h"
#include "base/macros.h"
#include "build/build_config.h"
#include "content/child/child_thread_impl.h"
#include "content/common/content_export.h"
#include "content/public/utility/utility_thread.h"
#include "mojo/public/cpp/bindings/binding_set.h"
#include "services/service_manager/public/interfaces/service_factory.mojom.h"

namespace content {
class UtilityBlinkPlatformImpl;
class UtilityServiceFactory;

#if defined(COMPILER_MSVC)
// See explanation for other RenderViewHostImpl which is the same issue.
#pragma warning(push)
#pragma warning(disable : 4250)
#endif

// This class represents the background thread where the utility task runs.
class UtilityThreadImpl : public UtilityThread,
                          public ChildThreadImpl {
public:
    UtilityThreadImpl();
    // Constructor that's used when running in single process mode.
    explicit UtilityThreadImpl(const InProcessChildThreadParams& params);
    ~UtilityThreadImpl() override;
    void Shutdown() override;

    void ReleaseProcessIfNeeded() override;
    void EnsureBlinkInitialized() override;

private:
    void Init();

    // ChildThread implementation.
    bool OnControlMessageReceived(const IPC::Message& msg) override;

    // IPC message handlers.
    void OnBatchModeStarted();
    void OnBatchModeFinished();

    void BindServiceFactoryRequest(
        service_manager::mojom::ServiceFactoryRequest request);

    // True when we're running in batch mode.
    bool batch_mode_;

    std::unique_ptr<UtilityBlinkPlatformImpl> blink_platform_impl_;

    // service_manager::mojom::ServiceFactory for service_manager::Service
    // hosting.
    std::unique_ptr<UtilityServiceFactory> service_factory_;

    // Bindings to the service_manager::mojom::ServiceFactory impl.
    mojo::BindingSet<service_manager::mojom::ServiceFactory>
        service_factory_bindings_;

    DISALLOW_COPY_AND_ASSIGN(UtilityThreadImpl);
};

#if defined(COMPILER_MSVC)
#pragma warning(pop)
#endif

} // namespace content

#endif // CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_
